CONTENTS 



Page 



I INTRODUCTION 5 



II NATURE AND SOURCES OF BASIC DATA 6 



1. General 6 



2. Wave Data 9 



3. Wave Refraction 10 



4. Wave Power 11 



5. Longshore Currents 11 



6. Littoral Transport 12 



7. Bottom Sediments 12 



8. Tidal Relationships 12 



9. Surveys of Beaches and Bottom 12 



10. Tidal Prism 14 



11. Tidal Currents 15 



12. Sediment Transport in Bolinas Lagoon Inlet 15 



13. The Ecosystem 15 



ID SUMMARY OF DATA RELEVANT TO THE INLET 15 



1. Wave Data 15 



2. Wave Power 15 



3. Longshore Currents 20 



4. Sedimentation Processes— Bolinas Bay 23 



5. Inlet Characteristics 28 



6. Sediment Transport by Tidal Currents 31 



IV CONCLUSIONS AND RECOMMENDATIONS 42 



LITERATURE CITED 43 



TABLES 



1 Corps of Engineers Refraction Diagrams for the Central California Coast .... 10 



2 Tidal Differences— Bolinas Bay and Bolinas Lagoon 13 



3 Tidal Data 13 



